Alcock, L., Alcock, E. and Foster, S. (1987) “Reconnaissance excavations on early historic fortifications and other royal sites in Scotland, 1974-84: 1, excavations near St Abb’s Head, Berwickshire, 1980”, Proceedings of the Society of Antiquaries of Scotland, 116, pp. 255-279. doi: 10.9750/PSAS.116.255.279.